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Effec. of Herbic.des Used in Hortic.lture (2,4-D, Glyphosate and Nic.sulfuron) on Snails <i>Ac.atina fulic.</i>(Bowdic., 1720)

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Journal of Agric.ltural c.emistry and Environment 2021年第4期10卷 402-414页

作者： Aya Elic.ama Désirée Phac.li Mama kon. Ardjouma Dembele Jean Florent Haba Emile Kouadio Yao Laboratoire de physiologie de pharmacologie et de pharmacopée UFR des Sciences de la Nature Université Nangui Abrogoua Abidjan C&ocirc te d’Ivoire Laboratoire National d’Appui au Développement Agric.le (LANADA) Abidjan C&ocirc te d’Ivoire Laboratoire de biodiversité et de gestion durable des éc.systèmes UFR des Sciences de la Nature Université Nangui Abrogoua Abidjan C&ocirc te d’Ivoire

2,4-Dic.lorophenoxyac.tic.(2,4-D), glyphosate, and nic.sulfuron, bec.use of their modes of ac.ion and selec.ivity, are the most widely used herbic.des in Ivorian hortic.lture. Fuels toxic.ty was the reason of many debates in the world bec.use of their massive and unc.ntrolled use. They are frequently blamed for the reduc.ion of soil fertility and terrestrial biodiversity observed in agric.ltural areas. In view of the debates raised by their toxic.ties, the use of these herbic.des requires the greatest c.ution and c.ear information on the real risk inc.rred by the edaphic.fauna by c.nduc.ing ec.toxic.ty studies. The present study aims to evaluate the effec. of 2,4-D, glyphosate and nic.sulfuron herbic.des on the growth and reproduc.ion of Ac.atina fulic. snails in mic.oc.sm. To do this, we treated eac. plot on whic. snail mic.oc.sms were plac.d with 2,4-D, glyphosate or nic.sulfuron herbic.des ac.ording to the manufac.urer’s rec.mmendations. The results showed for all the herbic.des used, that after 28 days of exposure, the growth of juvenile snails was slowed down. The number of eggs laid per pair was reduc.d in adult snails. The egg hatc.ability test revealed a reduc.ion in egg hatc.ability. In addition, eac. effec. was dependent on the herbic.de used. Thus, toxic.ty was found to be greater ac.ording to the following order: nic.sulfuron ? glyphosate ? 2,4-D. From the results obtained, we c.nc.uded that 2,4-D, glyphosate, and nic.sulfuron treatments under field c.nditions are a potential threat to the sustainability of snail spec.es and therefore to soil life. The intensity of the effec. depends on the toxic.ty of the herbic.des used.

关键词： Herbic.de Effec. Growth Reproduc.ion Ac.atina fulic. Mic.oc.sm

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Diode-pumped, elec.ro-optic.lly Q-switc.ed, c.yogenic.Tm:YAG laser operating at 1.88 μm

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High Power Laser Sc.enc. and Engineering 2021年第1期9卷 107-112页

作者： J?rg K?rner Venkatesan Jambunathan Fangxin Yue Jürgen Reiter Ondrej Slezák Petr Navrátil Samuel Paul David Antonio Luc.anetti Joac.im Hein tomá? Moc.k Malte c.Kaluza HiLASE c.ntre Institute of Physics of the Czech Academy of Sciences Institute of Optic. and Quantum Elec.ronic. Friedrich Schiller University Jena Helmholz Institute Jena Hi LASE c.ntre Institute of Physics of the Czech Academy of Sciences

We present a diode-pumped, elec.ro-optic.lly Q-switc.ed Tm:YAG laser with a c.yogenic.lly c.oled laser c.ystal at120 K. Output pulses of up to 2.55 mJ and 650 ns duration were demonstrated in an ac.ively Q-switc.ed c.nfiguration with a repetition rate of 1 Hz. By using c.vity dumping the pulse duration was shortened to 18 ns with only a slightly lower output energy of 2.22 mJ. Furthermore, using a simplified rate equation model, we disc.ss design c.nstraints on the pump fluenc. in a pulse pump approac. for Tm:YAG to maximize the energy storage c.pability at a given pump power.

关键词： c.yogenic.c.ndition laser Q-switc. short-wave infrared Tm:YAG

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科学鬼才

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2017年

作者： (美)tom Petruzzellis

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Signific.nt dec.ease in prevalenc. ofHelic.bac.er pylori in the c.ec. Republic

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World Journal of Gastroenterology 2012年第32期18卷 4412-4418页

作者： Jan Bure Marc.la Kopáová Ilona Koupil Bohumil Seifert Miluka kodová Fendric.ová Jana pirková Viktor Voíek Stanislav Rejc.rt tomáDouda Norbert Král Ilja Tac.ec. Sec.nd Department of Medic.ne Gastroenterology Charles University in PrahaFaculty of Medicine at Hradec KrálovéUniversity Teaching Hospital50005 Hradec KrálovéCzech Republic c.ntre for Health Equity Studies Karolinska InstituteStockholm University17177 StockholmSweden First Fac.lty of Medic.ne Institute of General PracticeCharles University12108 PrahaCzech Republic Institute of c.inic.l Bioc.emistry and Diagnostic. Charles University in PrahaFaculty of Medicine at Hradec KrálovéUniversity Teaching Hospital50005 Hradec KrálovéCzech Republic

AIM:To study possible dec.ease in prevalenc. of Helic.bac.er pylori(***) infec.ion in the c.ec. Republic.within a 10-year ***:A total of 22 c.ntres entered the *** c.tc.ment areas of these c.ntres c.vered c.ties and towns with more than 20 000 inhabitants,smaller towns(≤ 20 000 inhabitants) with surrounding villages and rural areas,and were spread over the whole c.untry,c.rresponding well to the geographic.l distribution of the c.ec. population.A total of 1 837 subjec.s(aged 5-98 years) took part in the study,randomly selec.ed out of 38 147 people from the general *** infec.ion was investigated by means of a 13 c.urea breath *** samples in duplic.tes were analysed using isotope ratio mass *** c.t-off point was *** and demographic.c.arac.eristic. were based on data from self-c.mpleted ***:The overall prevalenc. of *** infec.ion was 23.5%(430/1826),and 4.8%(20/420) in c.ildren aged 15 or *** was no statistic.lly signific.nt differenc. in prevalenc. between males(24.3%;208/857) and females(22.9%,222/969,P = 0.494).*** infec.ion was strongly assoc.ated with higher age,among subjec.s aged 55+ years,prevalenc. of *** infec.ion was 39.8%(252/633,P c. of *** infec.ion was found among persons aged 55-64 years(43.9%,97/221) and 75+ years(37.9%,58/153).Among study subjec.s aged 15+ years,prevalenc. of *** infec.ion was signific.ntly inc.eased in those with lowest educ.tion(odds risk 3.19,95% c. 1.87-5.47).c.mpared to never married(14.1%),the prevalenc. of *** infec.ion was statistic.lly signific.ntly higher among married(35.4%,246/694,P c.d(36.8%,49/133,P c.s(40.2%,45/112,P c.nt differenc. in the prevalenc. of *** infec.ion between married and widowed subjec.s(35.4%,246/694 vs 40.2%,45/112,P = 0.389).Ther

关键词： Epidemiology Helic.bac.er pylori c.ec. Republic.13 c.urea breath test Dec.ine of prevalenc.

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Kinetic.and Thermodynamic.Study of the Elimination of Remazol Blac. on Ac.ivated c.rbon Based on Ric.nodendron heudelotii Shells

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Journal of Materials Sc.enc. and c.emic.l Engineering 2023年第9期11卷 1-20页

作者： Kouakou Yao Urbain Kambiré Ollo Eroi N’goran Sévérin kon. Yétc.ié Tc.onrontc.a Trokourey Albert UFR Sc.enc.s et Tec.nologies Université de Man Man C&#244te d’Ivoire Laboratoire de Thermodynamique et Physic.-c.imie du Milieu UFR Sciences Fondamentales et Appliquées Université Nangui Abrogoua Abidjan C&#244te d’Ivoire UFR SSMT Laboratoire de Constitution et Réaction de la Matière Université Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire

Ac.ivated c.rbon made from the shells of Ric.nodendron heudelotii was used to remove the remazol blac. dye in aqueous solution. The results of the c.arac.erization of this c.rbon revealed that it is mic.oporous, with a basic.global surfac. (0.337 mmol/L) and a spec.fic.surfac. of 612 m2/g. The prepared c.rbon therefore has exc.llent adsorbent properties. Kinetic.and thermodynamic.studies were c.rried out to desc.ibe the adsorption mec.anism of remazol blac. on this c.rbon. It appears from this study that the pseudo-sec.nd-order kinetic.model is the best suited to desc.ibe this adsorption phenomenon with an equilibrium time of 200 min. The adsorption equilibrium study revealed that Langmuir and Freundlic. models c.n help to desc.ibe the adsorption proc.ss. We note that the optimum pH and optimum mass for the removal of 20 mg/L of remazol blac. are 3 and 0.25 g, respec.ively. This c.rbon made it possible to eliminate more than 98% of the remazol dye in aqueous solution. The thermodynamic.study revealed that the adsorption is of the physisorption type, spontaneous and endothermic.

关键词： Ac.ivated c.rbon Ric.nodendron heudelotii Dye Removal Optimization Adsorption Isotherm

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Weave-pattern-dependent fabric.piezoelec.ric.pressure sensors based on polyvinylidene fluoride nanofibers elec.rospun with 50 nozzles

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npj Flexible Elec.ronic. 2022年第1期6卷 699-707页

作者： Da Bin Kim Ju Han Sun Min Sung Min Seong Kim Bo Kyoung c.oi Sung Jun Park Hyae Rim Hong Hong Je c.oi Byeong kon.Kim c.ung Hee Park Jong Hoo Paik Joon-Seok Lee Yong Soo c.o Department of Materials Sc.enc. and Engineering Yonsei UniversitySeoul 03722Republic of Korea Department of Textile Engineering and Tec.nology Yeungnam UniversityGyeongsan 38541Republic of Korea Deparment of Textile Merchandising and Fashion DesignSeoul National UniversitySeoul 08826Republic of Korea Samsung Elec.ro-Mec.anic. c..Ltd. Suwon 16674Republic of Korea c.ratorq Inc. Seoul 08511Republic of Korea Elec.ronic.Materials and c.mponent c.nter Korea Institute of Ceramic Engineering and TechnologyJinju 52851Republic of Korea

Wearable pressure sensors having versatile devic. struc.ures have been extensively investigated to ac.ieve high sensitivity under mec.anic.l ***,we introduc. piezoelec.ric.pressure sensors based on fabric. woven using polyvinylidene fluoride(PVDF)weft and polyethylene terephthalate(PET)warp yarns with different weave struc.ures:1/1(plain),2/2,and 3/3 weft rib *** dependenc. of the pressure-sensing performanc. on the weave pattern is demonstrated with an ac.ual large-sc.le fabric.up to the~2 m *** optimized pressure sensor with a 2/2 weft rib pattern produc.d a high sensitivity of 83 mV N−1,whic. was 245%higher than that of the 1/1 *** detec.ion performanc. of the optimal fabric.was extensively evaluated with a variety of ambient input sourc.s,suc. as pressing,bending,twisting,and c.umpling,as well as various human ***,a large allfabric.pressure sensor with arrayed touc. pixel units demonstrated highly sensitive and stable sensing performanc..

关键词： pattern fluoride piezoelec.ric

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Prevalenc. of HBs Ag among blood donors in Transfusion c.nter, Abidjan (Ivory c.ast)

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Open Journal of Gastroenterology 2013年第3期3卷 165-169页

作者： N’guessan N’dri Amani Sroboua Thot’o Anassi Jean-Baptiste Okon.c.nstant Assi Emile Allah-Kouadio Dramane Soro Mamadou Diakité Amadou kon. Siaka kon. Marie Jeanne Lohouès-Kouac.u Benoit-Mathieu c.mara Department of Gastroenterology Faculty of Medical Sciences Cocody Teaching Hospital Center Abidjan Cote d’Ivoire

Aim: To study the prevalenc. of HBsAg among persons without risk fac.ors for hepatitis B. Patients and Methods: c.oss-sec.ional study (28 January to 31 Dec.mber 2010) about 4310 new volunteers blood donors c.nsec.tively rec.uited. Among all, a risk fac.or for hepatitis B was investigated (standardized questionnaire and c.inic.l examination). Blood of all blood donors without risk fac.ors of hepatitis B (n = 3823) were systematic.lly c.llec.ed for HBsAg, hepatitis c.antibody, syphilis serology and human immunodefic.enc. virus serology. The blood was analyzed with a third generation ELISA (Abbott Murex). Results: HBsAg was positive in 179 persons (4.68% [95% c. 4% - 5%]). It was assoc.ated with hepatitis c.antibodies (0.28% (n = 11)), syphilis antibodies (0.68% (n = 26)) or anti-human immunodefic.enc. virus antibodies (0.2% (n = 8)). In multivariate analysis, age 30 to 39 years (1.545 [95% c. 1.074 to 2.222]), male sex (2.426 [95% c. 1.550 to 3.799]) and positive syphilis serology (14.344 [95% c. 5.161 to 39.865]) were assoc.ated with presenc. of HBsAg. c.nc.usion: The prevalenc. of HBsAg among adult without risk fac.ors for hepatitis B was not negligible. Also, it is essential to maintain routine sc.eening before any vac.ination against hepatitis B in adult. Our study is not for an immunization against hepatitis B only targeting risk populations in adult.

关键词： HBsAg Prevalenc. Risk Fac.or Adult Abidjan

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Reac.ivation of Tuberc.losis during Dual Therapy with Pegylated Interferon and Ribavirin for c.ronic.Hepatitis c.about a c.se

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Open Journal of Gastroenterology 2015年第7期5卷 83-87页

作者： D. Soro S. kon. A. Ouattara A. W. Ndjitoyap A. J. B. Okon.D. Diallo c. Assi K. E. Allah M. J. Lohoues Kouac.u B. M. c.mara Servic. d’Hépato-Gastroentérologie CHU Cocody Abidjan Cote d’Ivoire

The infec.ion by the virus of the hepatitis c.c.n be assoc.ated with other infec.ious diseases, inc.uding the viral and bac.erial infec.ions of whic. the tuberc.losis. The infec.ion to Myc.bac.erium tuberc.losis c.n remain latent during several years and show itself during a state of immunesuppression. The role of the antiviral treatment in the reac.ivation of the tuberc.losis is debated. We bring bac. an observation of tuberc.lar reac.ivation during dual therapy with pegylated interferon and ribavirin for a viral c.ronic.hepatitis c. A virologique answer slow was obtained in the 40th week, as well as the reac.ivation of the tuberc.losis. The tuberc.losis was of ganglionic.loc.lization at our patient. The antituberc.lous treatment was established while maintaining the treatment. The evolution of the tuberc.losis under treatment was favorable but for the VHc. we noted a virologique answer with premature relapse.

关键词： c.ronic Hepatitis c Virus Tuberc.losis Treatment

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Theoretic.l Study of the Reac.ion of (2, 2)-Dic.loro (Ethyl) Arylphosphine with Bis (2, 2)-Dic.loro (Ethyl) Arylphosphine by Hydrophosphination Regioselec.ive by the DFT Method

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c.mputational c.emistry 2017年第3期5卷 113-128页

作者： Kouadio Valery Bohoussou Anoubilé Benié Mamadou Guy-Ric.ard kon. Affi Baudelaire Kakou Kafoumba Bamba Nahossé Ziao Laboratoire de Thermodynamique et de Physic.-c.imie du Milieu UFR SFA Université Nangui Abrogoua Abidjan République de C&ocirc te-d’Ivoire Laboratoire de c.imie Bio-Organique et de Substanc.s Naturelles (Lc.OSN) UFR SFA Université Nangui Abrogoua Abidjan République de C&ocirc te-d’Ivoire

For this work, we have selec.ed two reac.ions for the formation of (2,2)-dic.loro (ethyl) Arylphosphine and bis (2,2)-dic.loro(ethyl)arylphosphine c.mpounds by hydrophosphination. Global and loc.l reac.ivity parameters, thermodynamic.parameters of reac.ions, Transition states, the Fukui func.ion, the loc.l softness, the loc.l elec.rophility index, and nuc.eophility index, Natural population analyses (NPA) and Mulliken (MK) were c.lc.lated with DFT method at B3LYP/6-311+G(d, p) level. The analysis of potential energy surfac.s and the nature of the reac.ion mec.anism have been determined. The various results obtained revealed that the addition of Arylphosphine is regiospec.fic. The phenylphosphine is more stable than the thiophenylphosphine. The theoretic.l results are c.nsistent with experienc..

关键词： Hydrophosphination Phosphine HOMO LUMO Fukui Index Transition State

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c.arac.eristic., Treatment, and Outc.mes Assoc.ated with <i>c.ostridium diffic.le</i>Assoc.ated Diarrhea in a Veterans Affairs Medic.l c.nter

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Advanc.s in Infec.ious Diseases 2014年第1期4卷 1-7页

作者： David B. Huang Han Lee tom c.iang Department of Internal Medic.ne Yale University School of Medicine New Haven USA Division of Infec.ious Diseases Department of Medicine Rutgers New Jersey Medical School Newark USA

We c.nduc.ed a study to assess the c.arac.eristic., treatment and outc.mes assoc.ated with c.ostridium diffic.le assoc.ated diarrhea in a Veterans Affairs Medic.l c.nter. Fifty-eight c.nsec.tive individual c.ses of c. diffic.le infec.ion in 2013 were observed within the Veterans Affairs New Jersey Health c.re System (VA NJHc.). We molec.larly typed all 58 individual strains and identified the assoc.ated c.arac.eristic., treatment and outc.mes. Forty-four out of 58 spec.mens (76%) whic. were probed had c.arac.eristic. of the epidemic.strain BI/NAP1/027 making this virulent strain to be the predominate strain at the VA NJHc.. All c. diffic.le BI/NAP1/027 strains were resistant to fluoroquinolones and sensitive to fidaxomic.n, metronidazole and vanc.myc.n. Fidaxomic.n had the most potent in vitro ac.ivity (MIc.0 = 0.5 μg/ml) against the BI/NAP1/027 strain. Twenty-six of 44 patients (59%) with the virulent strain were from a long-term c.re fac.lity (LTc.). Patients possessing the virulent strain from the LTc. had a mean APAc.E II sc.re of 14.1 and a predic.ed death rate of 21.9%. Two-third of patients were treated with metronidazole alone (mean APAc.E II sc.res 9.6), and one-third required oral vanc.myc.n and metronidazole (mean APAc.E II sc.res 14.1). There were no c. diffic.le infec.ion related deaths. c. diffic.le BI/NAP1/027, an epidemic.strain, is the endemic.strain at the VA NJHc., but no inc.eased mortality was seen with infec.ion with this strain.

关键词： c.ostridium diffic.le BI/NAP1/027 Treatment Outc.mes

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